[julianeon]

Amusingly, the comment right about yours contradicts this: saying HEY does not feel fast, and a tuned React SPA would be faster.

I would say that there's been a pendulum swing back towards no frameworks, no bloat. But the corollary (important to note) is: this assumes competence & knowledge of performance tuning - in React, VUE, or no framework. Significantly, it means you have to a little more than the defaults.

Because if you don't do any performance tuning, it's possible that a tuned React SPA could beat it. It seems possible that a HEY app written by someone who did that with React could be even faster than what we see on HEY right now, in this particular case.